Venous Thromboembolism Prophylaxis after Total Knee Arthroplasty

Area of Science:

• Orthopedic Surgery
• Vascular Medicine
• Pharmacology

Background:

• Venous thromboembolic disease (VTED) is a serious complication following total knee arthroplasty (TKA).
• Current prophylaxis involves mobilization, mechanical devices, and anticoagulants, but optimal methods remain unclear.
• Risk stratification guides pharmacologic prophylaxis, with aspirin gaining popularity for standard-risk patients.

Purpose of the Study:

• To review current strategies for VTED prophylaxis after TKA.
• To evaluate the efficacy and safety of aspirin versus newer oral anticoagulants.
• To discuss the optimal duration and methods of mechanical prophylaxis.

Main Methods:

• Literature review of studies on VTED prophylaxis after TKA.
• Analysis of clinical trial data on aspirin and novel oral anticoagulants.
• Examination of guidelines and expert opinions on mechanical prophylaxis.

Main Results:

• Aspirin demonstrates efficacy and cost-effectiveness with low bleeding risk in standard-risk TKA patients.
• Newer oral anticoagulants effectively reduce VTED but may elevate bleeding and wound complication rates.
• Optimal duration and modality of mechanical prophylaxis require further investigation.

Conclusions:

• Aspirin is a viable option for VTED prophylaxis in standard-risk TKA patients.
• Careful consideration of bleeding risks is necessary when choosing anticoagulants post-TKA.
• Further research is needed to define optimal mechanical prophylaxis protocols.